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MALPEDIA_Win_Oni_Auto

autogenerated rule brought to you by yara-signator

MalwareOniMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Oni.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-oni-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Oni_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a0f25e02-7b78-57b8-8594-38d2c2b2f26a"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.oni"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.oni_auto.yar#L1-L123"
		license_url = "N/A"
		logic_hash = "d72b50d34d0cd90d90022123b45db6a8a537ff1e016f2c9185af8e30808dcd21"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 7253 83f923 7753 8bc8 51 e8???????? }
		$sequence_1 = { 50 ff15???????? 85c0 740f e8???????? 6a01 ff15???????? }
		$sequence_2 = { 83c404 8b85dcfdffff c785c4fdffff0f000000 c785c0fdffff00000000 c685b0fdffff00 }
		$sequence_3 = { c3 c744243c0f000000 c744243800000000 c644242800 }
		$sequence_4 = { 8955ec 3b5310 0f8261ffffff 8d4df0 e8???????? }
		$sequence_5 = { 8d4ff8 395310 0f869f000000 837b1410 7204 8b03 eb02 }
		$sequence_6 = { 6aff 40 c745dc0f000000 50 8d45e0 c745d800000000 50 }
		$sequence_7 = { c645b400 83f810 723e 8b4dcc 40 3d00100000 722a }
		$sequence_8 = { 7241 8b8d98fdffff 40 3d00100000 722a f6c11f }
		$sequence_9 = { 2bc8 83f904 0f8231010000 83f923 0f872d010000 }

	condition:
		7 of them and filesize < 499712
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 7253 83f923 7753 8bc8 51 e8???????? }
$sequence_1hex{ 50 ff15???????? 85c0 740f e8???????? 6a01 ff15???????? }
$sequence_2hex{ 83c404 8b85dcfdffff c785c4fdffff0f000000 c785c0fdffff00000000 c685b0fdffff00 }
$sequence_3hex{ c3 c744243c0f000000 c744243800000000 c644242800 }
$sequence_4hex{ 8955ec 3b5310 0f8261ffffff 8d4df0 e8???????? }
$sequence_5hex{ 8d4ff8 395310 0f869f000000 837b1410 7204 8b03 eb02 }
$sequence_6hex{ 6aff 40 c745dc0f000000 50 8d45e0 c745d800000000 50 }
$sequence_7hex{ c645b400 83f810 723e 8b4dcc 40 3d00100000 722a }
$sequence_8hex{ 7241 8b8d98fdffff 40 3d00100000 722a f6c11f }
$sequence_9hex{ 2bc8 83f904 0f8231010000 83f923 0f872d010000 }

Condition

7 of them and filesize < 499712

In plain words (Heuristic)

  • The file must be smaller than 499712 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: a0f25e02-7b78-57b8-8594-38d2c2b2f26a

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE